Functional Groups, pKa, Ionization States & Properties

Question 1

Alkane

pKa:
Ion state @ pH 3:
Ion state @ pH 7:

Properties:

Type of geometry:

Draw general structure.

Answer 1

pKa: not listed
Ion state @ pH 3: neutral
Ion state @ pH 7: neutral

Properties: non-polar, hydrophobic, lipophilic, chemically stable

Type of geometry: tetrahedral

Question 2

Alkyl halide; Haloalkane

pKa:
Ion state @ pH 3:
Ion state @ pH 7:

Properties:

Type of geometry:

This structure may be displaced by ___________ or eliminated by __________.

Draw general structure.

Answer 2

pKa: not listed
Ion state @ pH 3: neutral
Ion state @ pH 7: neutral

Properties: Hydrophobic, lipophilic, chemically stable

Type of geometry: Tetrahedral

This structure may be displaced by nucleophiles or eliminated by bases.

Question 3

Alkene

pKa:
Ion state @ pH 3:
Ion state @ pH 7:

Properties:

Type of geometry:

Draw general structure.

Answer 3

pKa: not listed
Ion state @ pH 3: neutral
Ion state @ pH 7: neutral

Properties: Non-polar, hydrophobic, lipophilic, chemically stable

Type of geometry: Planar

Question 4

Alkyne

pKa:
Ion state @ pH 3:
Ion state @ pH 7:

Properties:

Type of geometry:

Draw general structure.

Answer 4

pKa: not listed
Ion state @ pH 3: neutral
Ion state @ pH 7: neutral

Properties: non-polar, hydrophobic, lipophilic, chemically stable

Type of geometry: linear

Question 5

Aromatic hydrocarbon; Arene

pKa:
Ion state @ pH 3:
Ion state @ pH 7:

Properties:

Note: benzene and _______ are NOT _________ ______ names.

Draw general structure.

Answer 5

pKa: not listed
Ion state @ pH 3: neutral
Ion state @ pH 7: neutral

Properties: non-polar, hydrophobic, lipophilic, (4n + 2e-) chemically stable

Note: benzene and phenyl are NOT functional group names.